Radiator for high-pressure systems



' March 10, 1931. A. H. HART 1,795,774

RADIATOR FOR HIGH PRESSURE SYSTEMS Filed July 21, 1927 2 Sheets-Sheet 1 Zlnuwntoz 99 AusZi/zfiTHa/i.

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March 10, 1931. -A. H. HART 1,795,774

RADIATOR FOR HIGH PRESSURE SYSTEMS 7 Filed July 21, 1927 2 Sheets-Sheet 2 Patented Mar. 10, v1931 i v I i UNlTE'D STA AUSTIN HART F GREENWICH colinmcTmUT, ASS'IGNOR) BY SunAssIGNMENrS, 0 REVERE oorrnnnnn BRASS INCORPORATED, 0F BAL'r Monn nYLANn, a

CORPORATION or MARYLAND nnnilwon Eon nren rn-nssunn SYSTEMS Application filed July 21,

' This application is a continuation-in-part of myUnited States application, SerialNumber:147,353, filed November 18,1926, which radiator sections of the the sections, and of the I In the using of these 7 tions, it has been found necessary to devise has matured into Patent No. 1,641,586, granted Sept. 6, 1927.

As isiwell known in this art, radiators built'up of flat tubular sections have heretofore not been adapted for use in systems having pressure overfifty pounds; for pressures over fifty pounds it has always been necessary to use' cylindrical tubingarranged in gridiron fashion. f

which reinforce the flat tubular sections and adapt them for use without distortion in systems operating at very high temperature and under pressures'greater than the flat prior art have ever been able to withstand. finned radiator secspecial couplings to secure the. sections of a radiator unit to each other in orderto pro-k A further object-of the invention is to providesystems of this type with couplings which enable the heating fluid to be conducted into and out of the radiator units at any of the coupling joints connecting adJacent sections to each other.

of a radiator heating unit Other objects of the invention will become apparent as the detailed description thereof proceeds.

In the drawing p Figure 1 is a fragmentary side elevation forming part of ,The main object of the'present invention is to provide a heating system in which the radiator units are each-built up of flat sections provided with heat radiating fins V tubular 1 1927. Serial No. 207,529,.

elevation of one of'the sure cap removed to show a couplingm end elevat1on;and

Figure 4 is a plan' view oftheradiator unit; r s A As shown in the drawings, the radiator unit, designated as a whole by the'reference character R, comprisesa plurality of sections 1, each of which includes apair of sheet. 1 i.

metal plates 2 and .3p-referably of brassor copper, welded together at their-respective edges 4 and 5 and shaped to form a flat tube" closed at each end, and having fiat's'ubstan tially parallelsides 6'and 7. p

f The opposite ends of each section 1 are inset from the sides (Sand 7 to form header faces 8 and 9 substantially parallel to.- the faces 6 and 7 The faces 8 and 9-are provided with alined apertures 10 and '11 respectively, through which 'project the screwthreaded with parts of the radiator seccoupled ends ,of'the radiator unit with; a clo- 3 bosses 12 and. 13' of the coupling members 14 v and 15 respectively, each of which isprovided with abridge plate 16 extending diametrically across the couplingmember. The cen ter of .each plate 16 is apertured to receive the shank of a rod 17 which is headed at each end to engage the plates '16 and to limit the degree-of separation of'the members 14 and A cap 18 may be used to close either of the coupling members 14 and 15 at the ends of a built up radiator unit, and couplingnu'ts 19 are used toc'onnect the coupling members 14 and 15 of adjacent sections in the unit.

The heating fluid may, of course, enter the radiator unit at either end of the coupled headersof the unit, but as this particular type of heating apparatus is frequentlyused with 7 its sections horizontally arranged, I provide a special T-coupling 20, having a branch pipe 21 'extending'therefrom, to be substituted for other to prevent. distortion or" the sections 7. under any condition of pressure to whic'h'they may be subjected. Each fin has a flange 23 extending at right angles thereto andclosely fitting the section on which it is mounted, and, these flanges and fins are, soldered tethe sec tions in order to provide the greatest possi ble heat conductive connection between the fins and sections. I v

In order to permit the assembling of the fins on the sections, the split couplings are-so designed that whentheir inner faces 24 and 25 are moved into contact with each other, the distance between their outer faces 26 and 27 isless than the distance between the parallel'faces; 6. and 7 of the section plates 2 and 3, it being understoedo-fi course, that the bridge plates l6 slide freely on therod' 17, which, .obviously mustbe shorter than: the distance between the faces 6 and"? of thesestion plates. V

' The bridge members 161 are adapted to receive a suitably formed wrench whenever it becomes necessarytorotate the coupling member connecte'd thereto. for the purpose of assembling or disassembling the section of a unit.

I claim:

1. A radiator comprising a plurality of tubular sheet metal sections each ot'which is provided at each end with alined apertures, a coupling member slidabl e and rotatable in each aperture and having an annular shoulder preventing its removal from the section in which it is mounted, and ineansinside suchsection for slidahly connecting the said members to each other- 2.. A radiator section for high pressure systems comprising a pair of plates. having their edges welded together and shaped to form a tube closed at each endand' having axially alined apertures in the opposite plates neareach end of the section,coupling members mounted to slide and rotate indevfendently in each of said apertures andhaving shoulders .toprevent removal thereof from said apertures, and, means connecting said membersslidably to. each other.

3. Afradiator section comprising a flat tube closed at each end and having the sides thereof provided with axially alined apertures, a shouldered coupling member having a screwthreaded cylindrical part slid'able and rotatable ine'ach'aperture, and projecting therethrough,and means to retain the said members; in-saidapertures.

4. A radiator sectionicomprising aifiattuhe closed at each end and having the sides thereof provided with axially alined apertures, fins spaced apart lengthwise on said section, and collapsible couplings in each end of said section adapted when extended to prevent removal of the fins from the section and when collapsed to permit the passage of the fins thereover. a 5. Aradiatori sectioncomprising a fiat tube having the ends thereof closed and having axially alined'aperturesthrough the opposite flat sidesthereozf, a coupling in each aperture having an annular shoulder adapted to engage the insideofone of the sides of said tube and a screwthreaded cylindrical projection rotatable and slidably in said Taperture, a bridgeplate extending diametrically across: the. shouldered end of said coupling and having an aperture therethrough at the axis of said coupling, and arod slid a-ble in the. apertures of-adjacent couplingsv in the end of a section; to prevent complete separation of said couplings and, dropping thereof within the section.

6.' A coupling for radiating sections comprisingapair; of. cylindrical screwthreaded members having annular shoulders at one end thereof, and 'meansslidably and rotatably connecting said; membersto eachv other to hold them inv axial alinement with each other throughout. their relative sliding and rotary movements. 1

7. A coupling comprising; a cylindrical rod, a pair of shouldered cylindrical extern-ally- I screwthreaded members .mountedto slide and rotate on said rod, and; means at each end of said rod; to limit the sliding movements of'said members thereon.

8. A coupling comprising a pair of cylin ClIlCiLl: externally screwthre-aded members each having a; centrally apertured bridge plate extendingdiametrically across 521d member, a rod mounted to slide and rotate in each of said, apertures and head formed on each end, of said rod to; limit the sliding movement. of." one. member relative to; the other.

In testimony whereof I aflix my signature.

Ansrm n, HART. 

